已建成的水平井大多采用裸眼完井和筛管完井。

Most wells completed with open hole or screen.

最后给出了复合缝腔割缝筛管在胜利油田的现场应用情况。

In the end the application of the liner in Shengli Oilfield is analyzed.

灌浆前期，稻穗上部枝梗筛管细胞质膜上的ATP酶活性比下部强；

The ATPase activity at the plasmolemma of the sieve cells of the branches of the upper part is higher than that of the basal part.

韧皮部中筛管分子的端壁是由4—6个梯状排列的筛域组成的复筛板。

The end walls of sieve-tube elements in the phloem have 4-6 specialized sieve areas which together form compound sieve plates.